us yet. >> reporter: despite this show of force by police, protesters seemed to come back even more determined. >> the mayor should be here. the mayor should talk to the people. >> reporter: instead, the mayor's legal adviser, dan siegel faced the crowd this evening and said he will be representing some of the demonstrators who were arrested in court. >> it doesn't seem to me that the police have a legal right, or a constitutional right to inflict serious injuries on people, in order to get them to leave, even an unlawful assembly. >> reporter: just in the last few minutes out here, organizers with occupy oakland told me they met in a general assembly, and voted for a general strike next wednesday. protesters by their own counts say they may be have 700 here tonight. but there's a lot of talk about leaving the franco gala plaza here to go on the other side of the bay in san francisco. >>> one protester is hospitalized after a nonlethal canister by a law enforcement officer exploded right in his face. oakland police say they are investigating, and we've also looked into the incident.